First, we made the sulfur foods by steaming natural hydrogen sulfide. And then, the finished sulfur foods were analysed by nearinfrared spectroscpy and ICP/MS system.The sulfur foods recognized increasing the amount of sulfur and the Maillard reaction.Second, to investigate the effect of sulfur foods on a learning memory, we examined the short or long learning memory of mice used by maze task. Mice fed sulfur foods showed increasing long learning memory, short learning memory and locomotor activity. And then, we examined the cell of hippocampus in mice brain. The number of hippocampus cell in a bodian stein were increased, but in other stains, HE, Congo red and Gallyas stains were not changed.